NEW YORK (

TheStreet

) -- Security has been increased around the home of Sarah Obama, President Barack Obama's step-grandmother, after Al Shabaab, a Somali terror group with ties to al Qaeda, issued a personal threat against her,

ABC News

reported, citing police.

Local police provided Sarah Obama with additional security around her home in Kenya on Thursday, after Al Shabaab reportedly threatened her life.

Security around her home had already been increased after the

United States killed al Qaeda leader Osama Bin Laden

last week.

The 88-year-old reportedly told

ABC News

she didn't mind the extra security.

"My life has not been affected in any way," she was quoted as saying. "It has not restricted my movement. If the government has decided to bring more security personnel, we are OK with it."

Al Shabaab, the Somalia-based branch of al Qaeda, has been linked to piracy and beheadings, as well as terror links to Somali communities in the United States.

An expert involved in security matters at the U.S. embassy in Kenya told

CBS News

that there are no new or credible threats to President Obama's grandmother at this time.

--Written by Theresa McCabe in Boston.

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